Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when to plant chinese celery is to consult the USDA zone info for Ketchikan.

Planting Calendar for Chinese celery

Frost tolerance for chinese celery:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Chinese celery are barely cold tolerant which tells us that you can start planting them slightly earlier than plants that are more sensitive to the cold.

The earliest that you can plant chinese celery in Ketchikan is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant chinese celery and expect a good harvest is probably August. Any later than that and your chinese celery may not have a chance to fully mature. Starting your chinese celery indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Ketchikan the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Ketchikan is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Ketchikan it frosts late in the year after April 15 be ready to cover your chinese celery in the event of a late frost.

USDA Zone Info for Ketchikan

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Ketchikan

You may be interested in your other planting guides for Ketchikan.